Reducing-machine.



B. M. W. HANSUN. BIIDUUIIG MACHINE. unicum :man am.: 1. 1w.

945,455. Patented Jan 4,1910. SBIEBTHHBBT l. ngz

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BHDUOIHG HAGHINE.

unicum! num :un 1. no1.

UNITED sTArnsijn'rEN'r OFFICE.

BENGT M. W. HNBOH, 0F HALBTFUBD, CONNECTICUT, ASSIGNOB T0 PRATT WHITNEYCOMPANY, 0F HABTFORD, CONNECTICUT, A CORPORATION 0F NEW JERSEY.

BEDUCING-MAGBINE.

Specmcation ot Letters Patent.

Patented J an. 4, 1910.

Application lcd July 1, 1907. Serial No. 381.643.

To all whom 'it 'may concern:

Be it known that. I BnNoT M. W. HAN- soN a citizen of Sweden, residingat Hartford, in the county of Hartford and State of Connecticut, haveinvented certain new and useful Im rovements in Reducing-Machines, ofwhich the following is a specification.

This invention relates to reduca machines and more es ecially to that, cass of such machines in w ch a vertical spindle is employed for carryingthe reducing or grindin -tool.

Main y the object of the invention 1s the provision of a mahine in whichthe cart-1er for the reducing-tool ma be operated either manually orautomatica. ly, as will hereinafter appear.

Other objects of the invention will be set forth in the detaileddescription.

In the accompanying drawings, Figure l is a perspective view of amachine involving my invention; and Fig. 2 is a sectional detail view ofthe slide, rack and pinion mechanism, and certain co erating parts, and,Fi 3 is a like view o a pair o connected s afts, worm gearing associatedwith une of .said shafts and power and hand operable means for the othershaft.

Like characters refer to likc parts throughnat the several figuras.

Referring to the drawings, the numeral 1 designates the base of themachine from which rises a column 2 the latter having a guideway 3 onwhich is fitted a slide 4 the column haviny a rack 5 meshing with a.pinion on said 'de as will hereinafter appcnr. Designated by 6 is thcvertical spindle of the marhint` driven by a pulley T over which passi-sn hell 8 leading over idlers fl to the main driver l0. At thc lower endll of thc spindle G is fitted the griml ing disk or shell i9, all of theelements just. mentioned bein" conventional, and constitilting no part nthe present invent-inn.

Upon ways of thc hed l is titled a carriage lJ-l mrrying a \vorksupport14, novidcd with T- ooves l5 in which may c titled T-holls iiir securinglhc usual work-support.

Designated hy 16 is a shaft joui-na al 'lu a lxuring nl the slide 4, andprovided with a pinion 1T in mesh with tlurack of slide ll. A\\'|:|rn|wlical lh* is loose] mounted on tha shaft ll, and in mesh willsaid worn:- whccl is n wurm lll carried hy a vertical shaft 20, thelatter bein journaled in bearings of the frame and aving at its lowerend a beveled gear 21; a bracket 22 projects from the frame, and servesas a support for said gear 21, and in mesh with the gear 2l is a similarbeveled gear 2:2'.

For connecting the worm 18 t0 shaft 16 any desired means may beemployed, that shown comprising a cup-shaped frictionclutch 23 movabletoward and from said worm-wheel by means of u hand-nut. 24 threaded uponthe end 1G' of the shaft, and bearing through an intermediate washer 2i,against the hub of the hand-wheel '26, the latter bein in slidablesplined connection with said s raft 16, and bein" placed between thewasher 25 and the hu of the splined clutch 23, so that when nut, 24 isadjusted it will, throu h its washer, bear against the hub of the wieel2G, and through the same force the clutch to engage the worm-wheel 18,as illustrated in Fig. :2, thus locking said wormwheel to its shaft. Itwill thus be seen that when the clutch is out of enga ement with theworm-wheel and when it is esired to rotate the shaft 16 by hand, andthus manually to adjust the position of the slide carrvin lhcgrinding-wheel hy means of the whee 2li this may readily accomplished ata point above thc hase 1 of thc machine.

Designated hy 2T is the .shaftbearing the bevel pinion 22. said shaftbeing journaled in bearings of the frame, at right angles to thevertical shaft 20. On the shaft 27 is keyed a ratchct-whcel 28, undloosely mounted upon either a collar 29 or it may he a huh projectingfrom the ratchet. wheel is a crank-arm or disk Z held against tuo frei*rotativo uan-murat hy liu-ans nl' a ln'akcshuc 'll. hacked hy a springIl?, as illustrated in Fig. 2l. 'l`n Ihn lult nf lho` Vnlrhet'- u'lwvl2H, and ndjnslullly secured to a thinlhlc. with thv shaft T ly a screwllfl is un arm :lll carrying a :sliml 3.'. l'nr throwing a paw] 36pirati-d lo thv vrault-aru'i or disk 3U nul of engagiuwut with therali-het teeth on said disk when ilul limit nl' umrcuwut ul said diskhas been arcumplislwd h v thc null malhfot-d uurhanism nl' Ilu-`machine: :unl ivi-youd thc al'lu rl :i hand-wheel l'i' is lwyml Inlhncud nl' shaft T and is hold in place nu said shaft hy a nul Ils,threaded upon n rvduccd mul 3U nl' llul sha fl. lly adjustilw thc arm -laround lla- Ihimldv an llashall .ET,

lill',

and then lockin it in place by the screw 23 the throw-olf o the awl 36can be regulated to occur at any csired point.

Articulated to the crank-arm or disk 30 is a link 40 connected at itsopposite end to an oscillatory lei-er or carrier 41, which isautomatically actuated by power-mechanism (not shown), whereby the shaft27 may be driven automatically and, through the connections described,will gradually lower the feed-slide 4 by means of geari (not shown inwhich the grinding-spinti e 6 is journa ed, and constituting no part ofthe present invention. 0

In machines of this kind it is important to be able to immediatel arrestthe automatic feed of the grin ing-wheel at any desired ont, and it isalso important to control tiie movement of the automatic feeddevices.Provision is, therefore, made in the resent machine for accomplishingthe resa ts mentioned and this is readil donc either b hand wheel 2.6above the ase of the mac 'ne and its connections with the rack 5, or bymeans of the hand-wheel 37 rejecting from the forward part of the base,and so connected that it may be manipulated when the pawl 36 is trippedor thrown out of action, to rotate said shaft 27, and through thegearing 29., 21, shaft 20, worm 19, and worm-wheel 1.8, canse the propermanual movement of the slide 4.

It is sometimes necemary in tine reducing work to manipulate the slide 4carrying the reducinghdisk or wheel with the utmost nicety, and t is maybe readily accomplished in either of the ways described so that askilled workman always has at hand proper means for manipulating thegrinding-wheel slide at different points and for running back said slidewhen desired without the necessity of reversing mechanism.

My invention is not limited to the recsc devices illustrated anddescribed for c ianges be made wit-hout departure therefrom.

aving thns described the invention, what I claim is:

1. The combination of a slide, a rack and pinion means for operatingsaid slide, a shaft, automatic mea-ns for operating said shaft, hand orable means for turning said shaft, opera ive connections between saidshaft and said rack and pinion means, and manuall -operable means activeindependent of said and-operable means for also operating said rack andpinion means.

2. The combination of a bed, a column rising from said bed, a slidesupported for movement by and along said column, rack and pinion meansfor operating said slide, a shaft supported by said bed, automatic meansfor operating said shaft, manuallvoperable means for also turning saidshaft, operative connections between said shaft and rack and pinionmeans, and manually-operable means supported by said column foroperating said rack and pinion means to effect the movement of saidslide independently of either said automatic means or first nientionedmanually operable means.

3. In a machine of the class described, the combination, with framework,of a slide mounted thereon, a spindle carrying a reducing-tool andjournaled in said side; a rack carried by the machine-frame; a shaft; ainion secured to said shaft, and in mesh with the rack; a worm-wheelloose upon the pinion shaft; a clutch for connecting said worm-wheel tothe inion shaft; and means carried by the pinion shaft for operating thefeed when the clutch is disenga said means including a hand-wheel, anmeans for forcing the hand wheel against the clutch.

4. The combination of a slide, rack and pinion means for operation',said slide, a shaft to which the pinion o said rack alid pinion means isconnected, a liiind\\'liecl. moans for clutching said lniiidwhecl tosaid shaft at will, a second shaft operatively connected with thc tix-stmentioned shaft, and automatic-ally-opeiative and manuali '-opcr atvelneans for turning said secon( inontioned shaft.

In testimony whereof I affix my signature in presence of two witnesses.

BENGT M. W. HANSON.

Vt'itnesses F. E. ANunnsoN, F. E. liiiinniiri.

